Gas heater



Feb. 5, 1929.

W. H. FRY

GAS HEATER I N V EN TOR.

Filed Dec. 19, 1927 fj/zalll 41 27 ATTORNEY Patented Feb. 5, 1929,

T. corner." 1

WILLIAM H. FRY; on Kansas crrxmrssonnr. j

I GAS 'HEATER.

Application filed December 19, 1927. Se1ial' No. 241,021. i

operation, and the elimination of all fumes,

including carbon monoxide, through the flue.

WVith'these general objects in view, as well as minor objects, which will appear during the course of the detailed specification, the invention will now be described with referenceto the accompanying drawing, illustrating a construction embodying the improvements of this invention. 4

In the drawing Figure 1, is a perspective View er, embodying this invention. v

Fig. 2, is a vertical central section of the same.

Fig. 3, is a vertical longitudinal section of a gas heattaken on line III-III of Fig. 2, and

Fig. 4, is a horizontal section IV.IV of Fig. 2.

Similar reference characters refer to like parts throughout the several views, and the numeral 5 designates an outer casing, open at the bottom, and provided withsuitable supporting legs 6. The front portion of casing 5 is provided with a large opening 7, while the top thereof has openings 8, through which the heated air may pass. An inner casing 9 is carried within said outer-casing, by means of spacing members 10. In order to foru'rair passage-ways between the inner an d outer casing, said casi'ngsare spaced apart, as clearly shown in Figs. 2, 3 and 4.

taken on line Referring to Fig. 4, it will benoted that the inner casing is provided at. its corners with vertical ribs 11, which extend tothe outercasing, thus forming air passages 12which are separated from air passages 13 and 14, located at the back and front of the heater, respectively. Y s I The inner easing 7 is provided with a horizontal partition 15, positioned intermediate its top and bottom, and extends from the rear wall forwardly to form an upper chamber 17 and a lower chamber 18 inthe inner casing. The front edge of the partition 15 is spaced casing 5.

apart from the front wall'ofthe inner casing thus forminga narrow passage-way between said upper and lower chai'nbers. Extending across the lower chamber fromthe lower rear portion thereof to the front edge of the'horizontal partition 15 is a concave deflector19. which is preferably hned with asbestos wool 20. The upper chamber '17 is provided with a plurality of vertlcal transverse partitions 21',

which extend from horizontal partition '15 to the top of said inner casing. Partitions 21 extend part way across said chamber, alternately from each side thereof, thus forming a horizontal zig-zag passage-way 28, for the products of combustion. .Communicating with the rear of chamber 17 is a flue 22 which is provided with a damper 30. 5 i

The front wall of the, inner casing 9 is provided with transparent portions 23, which are visible through the opening 7, and also has an opening 24 adjacent its bottom portion. Due to the spacing apart of the inner and outer casings, an air passage-way 25. vis formed, whereby air may pass into inner casing to supply oxygen for combustion, and also to create a-proper draft.

A gas or oil burner 26, of any suitable type is positioned in the lower rear portion of the the deflector 19, pass upwardly through the narrow passageway 16, into chan'iber 17, thence through. the,zig-Zag'passage-wav, as

lower chamber, so that the heat produced 7 thereby Wlll impinge the'concave surface of r indicated by the arrows, thence out through f the flue 20. The air to be heated enters the iiassage-ways between the inner and outer c'asin from the bottom, passes upwardly and out through theopenings 8 in the top of. outer In order to' facilitate the ignition ofthe gas from the burneiya lighting device 27 is piovided. 7 hen the valve in 27 is opened and the gas issuing from the same is ignited, a flame is projected through thetube 29 which extends through the two casings and conimunicates with the chamber 18 ata point above sa1d burner. Due to the construction of the stove and the long distance that the heated gases produced by the'burne'r must travel before leaving the heater, most of the heat therefrom is utilized in heating the air that passes between the casings, thus preventing the escape of any appreciable amount of heat through the flue.

I do not limit this invention to the construction shown and described, as many modifications may be made within the scope of the appended claims without departing from the spirit thereof.

WVhat I claim as new and desire to be se cured by Letters Patent is 1. In a gas heater, an outer casing having an open lower end, and openings in its top side, an inner casing carried within said outer casing and spaced apart therefrom, a plurality of vertical ribs extending from said inner to said outer casing to form a plurality of vertical passages between said outer and inner casings, a lower and an upper chamber in said inner casing having an opening therebetween, a forwardly and upwardly extend ing deflector in said lower chamber, a burner in said lower chamber positioned adjacent said deflector, a flue communicating with said inner chamber and a series of vertical partitions in said upper chamber to form a horizontal zig-zag passage-Way from said lower chamber to said flue.

2. In a gas heater, an outer casing having an open lower end, and openings in its top side, an inner casing carried within said outer casing and spaced apart therefrom, a lower and an upper chamber in said inner casing havingan opening therebetween, a forwardly and upwardly extending deflector in said lower chamber, a burner in said lower chamber positioned adjacent said deflector, a flue communicating with-said inner chamber, a

series of partitionsin said upper chamber to form a horizontal zig-Zag passage-way from said lower chamber to said flue, an opening in the side Wall of said outer casing, and transparent sections in said inner casing visible through said opening in the side Wall of said outer casing.

In testimony whereof, I-hereunto afiix my signature.

i WILLIAM rrFRY." 

